Coating machine



COATING MACHINE Filed March 21. 1924 5 Sheets-Sheet l (NVENTOR 4% JimWITNESSEJ ATTORNEY Dec. 15, 1925- T. J. GALBRAITH COATING MACHI NE FiledMarbh 21. 1924 5 Sheets-Sheet 2 lwllllrlll TTORNEY WITNESSES Deco I T.J. GALBRAITH COATING MACHINE Filed March 21. 1924 5 Sheets-Sheet 3 K MMUH MWWWHWW N INVENTOR ATTDRN EY WITNESSFJ Dec. 15, 1925- T. J.GALBRAITH COATING MACHINE 5 Sheets-Sheet 4 Filed Marci 21 1924 INVENTORATTORNEY WITNES'SAFJ 5 sh eets -sheet 5 T. J. GALBRAITH comma momma Filed March 21. 1924 INVENTQR ATTORNEY WITNESSES Patented Dec. 15, 1925.

THOMAS J. GALBRAI'IH, OF RICHMOND, VIRGINIA.

COATING MACHINE.

Application filed March 21, 1924.. .Serlal No. 700,871.

To all whom it may concern:

Be it known that .I, THOMAS J. GAL- BRAITII, a citizen of the UnitedStates, residing at Richmond, in the county of Henrico and State ofVirginia, have invented new and useful Improvements in Coating Machines,of which the following is a specification.

This invention relates to a coating apparatus, the general object of theinvention being to provide a device for applyingsizing, paint and thelike to a fabric or the like, the invention being mainly designed foruse in treating cloth to produce shades and curtaius.

Another object of the invention is to provide means for spraying thematerial upon the fabric, then brushing it in by rotary brushes and thensmoothing it by flat stationary brushes.

A further object of the invention is to place the cntire device upon atruck or carriage so that the spraying device and brushes can be drawnalong the surface of the fabric while the same is held in suspendedposition and also to provide means for holding the fabric at a uniformdistance from the truck or carriage while the same is moving along.

Another object of the invention is to provide n'ieans on the carriage ortruck for-cutting the fabric from the holding means and winding it upona spool upon the carriage. This invention. also consists in certainother features of construction and in the con'ibination and arrangementof the. several parts, to be hereinafter fully described, illustrated inthe accompanying drawings and specifically pointed out in the appendedclaims. I

In describing my invention in detail, ref-' erence will be had to theaccompanying drawings wherein like characters denote like Figure 6 is asectional view showing the means for drivingthe spool shaft from thecounter shaft.

Figure 7 is a section on'line 7-7 of Figure 8.

'Figure 8 is a sectional view through one of the rotary brushes and itssupporting and driving means. a

Figure 9 is a view of one of the cloth holding members showing the samein closed position.

Figure 10 is a similar viewshowing the same in open position.

Figure 11 is a detail view of the steering means.

Figures 12 and 13 are views of one of the spray guns.

Figure 14 is a sectional view through one of the smoothing brushes. v

V Figure 15 is a view showing the shifting mechanism for the brushes.

As is well understood the sheet of fabric or cloth A for forming acurtain or shade material is suspended from tracks while the sizing and"palm is being applied thereto by spray brushes, the sheet bein attachedto a member 1 which is suspende from the carriages on the supportingtrack by the cables 2 and the lower edge of the sheet being attached to"a member 3 which acts as a weight for holding the sheet in stretchedcondition-while it is receiving the coating material. In carrying out.my invention I make the inner edges of the members 1 and 3 ofridge-shape and place plates 4 of metal on the bevel faces. The innerplate ofmetal 4' .acts as a hinge for a removal piece 5 of each of themembers Land 3 so that the.

edges of the sheet can be clamped in the members 1 and 3 inv a. positionwhere it passes from each member at the point thereof so that thecoating material can be applied to all of the exposed part of the sheetand is prevented ,from accumulating at the junction of the sheet withthe member due to the absence of shoulders at these points. Anyaccumulation of. material can be easily removed from the plate by aknife, blowtorch or other means. The edges of; the

sheet are pasted to the members 1 and '3 after the members 5 have beenswung out wardly' and then these members are swung to closed position toclamp' the sheet to the member so that the sheet is held to the membersby the clamping action and by the adhesive material. Each member 5 isheld in closed position by means of the inclined end of the head 6engaging the plate 4 when the cam 7 on the stem 8 of the head is inengagement with the perforated ear 9 carried by each member, the stempassing through the perforation. When the clamp is to be opened the camis loosened by its handle and the stem and head given. a quarter turnand lowered intothe position shown in Figure 10. Each member 1 and 3carries a guideway 10 for a purpose to be hereinafter described.

The coat applying means are located on a truck 11 which is supported bythe rear axle 12 which carries the wheels 13 and the truck 14 which isconnected with the front end of the truck by the swivel connection 15and to which the steering post 16 is connected. The post is providedwith a pivoted handle 17 which may be placed in a notch 18 formed in thesteering post column 19, when the truck is to travel in a straight line.The truck may be provided with a tongue receiving part 20 so that atongue may be attached. A motor 21 is carried by the truck and its shaftcarries a pulley 22 and a bevel gear 23. A counter shaft 24 has a bevelgear 25 therein which meshes with the gear 23 and said counter shaft hasattached thereto a worm 26'. and a friction member 27 is slidablymounted on the counter shaft by means of a key thereon sliding in akeyway 28 in'the shaft. This friction member 27 engages an idlerfriction disc 29 and a friction disc 30 which is fastened to a shaft 31and this shaft 31 is fastened to a stub shaft 32 by the chain andsprocket means 33. Each of these shafts 31 and 32 are connected by thebevel gears 34 with the brush operating shaft 35. Thus by shifting themember 27 on the counter shaft the brush shafts can be driven atdifferent speeds or they can be reversed by passing the member 29 beyondthe center of the friction disc. The shifting means consists of apivoted lever 36 which has its forked end engaging project-ions on ablock 37 which is slidable on a supporting rod 38 and which has a forkeddepending part 39 which engages a groove in the mem ber 27 so that byrocking the lever 36 the block is moved so as to cause its dependingpart 39 to slide the member 27 upon the counter shaft.

I The gear 26 meshes with a gear 40 on a shaft 41 which is connected bythe chain and sprocket means 42 with the rear axle 12 so t at the truckcan be driven from the motor. An air compressor 43 is arranged on thetruck and its wheel 44 is engaged by a belt 45 which also engages thebelt pulley 22 on the motor shaft so that the air compressor is actuatedfrom the motor. The compressed air is delivered by means of the pipes 46to a tank 47 suspended from the bottom of the motor and this tank isconnected by the pipes 48 with the upper end of a paint receptacle 49which contains the material to stand pipes 51 and 53 carry hoseconnections 54 which when not in use can be closed by plugs 55. Hose 56are adapted to be fastened to the desired connections 54 and thesehoseare connected with the air and paint inlets 57 of the spray guns 58.These guns are of the type now on the market and are so constructed thatthe paint material forced from the paint receptacle by means of the airpressure therein will enter the gun through the inlet 57 and will beejected through the nozzle 59. The compressed air from the stand pipe 51will 'escape from the gun through an opening in the head thereof whichsurrounds the nozzle 59 and some of' this air will escape through thecurved pipes 60 and these different streams of air will cause thecoating material to pass. from the nozzle in a fan-like spray. Thesenozzles are connected with one of the uprights of a frame 61 by means ofa ring 62 on each nozzle and a set screw 63 on eacli ring. The frameacts as a support for the various pipes and shafts and its lower end issupported by the depending frame 64 which is connected with one of thesides of the truck. Eye pieces 65 are carried by the frames 61 and 64and the outer ends of these pieces engage the guideways 10 on themembers 1 and 3 and act to hold that part of the sheet being operatedupon a certain distance from the truck so that the sheet will beuniformly treated by the apparatus.

After the material is sprayed upon the sheet it is subjected to theaction of the rotary brushes 66 which are driven from the shafts 35.Each brush has its stem 67 slidably mounted in a hollow shaft 68 mountedto rotate in a bearing 69 which is slidaby mounted on a shaft 70 andheld in adjusted position on said shaft by the set screw 71. The' stem67 is limited in its movement by means of a stop 72 thereon engaging aslot 73 in the hollow shaft. A spring 74 placed between the brush andthe outer end of the bearing tends to hold the brush yieldingly againstthe sheet. The hollow shaft 68 carries a bevel gear 75 which meshes witha gear 76 slidably mounted on the shaft 35, which is of square shape incross section and said and the supporting shafts 70 for the rotarybrushes, said brushes can be arranged in staggered relation so that allparts of the" sheet can be operated upon by the brushes. It will be seenthat as many of these brushes can be used as desired or necessary to actupon the full width of the sheet.

In rear of the rotary brushes are arranged two sets of flat brushes 79which are adjustably supported on the uprights 80 by means of thetubular parts 81 encircling the uprights and being held in adjustedposition thereon by'the set screws 82. These parts 81 are provided withsockets 83 for receiving; the stems 84 of the brushes and springs 85tend to hold the brushes in their outer po. sitions, movement of thestems in the sockets being limited by the hinge 86 engaging the slots 87in the walls of the sockets.

The frame 61 is provided with the braces 88 and the flow of the air andliquid can'be controlled by means of the various valves 89 and thepressure can be ascertained by the gauges 90.

The apparatus is adapted to travel. along the length of the sheet to betreated, as shown iii the drawings and the sheet is, held in a certainposition relative to the apparatus by means of the eye piece engagingthe guideways 10 on the supporting members of the sheet. The coatingmaterial is first sprayed upon the sheet by the guns which deliver it ina fan-shaped spray and then the material is subjected to the action ofthe rotary brushes and then the material is smoothed upon the sheet bythe. flat brushes 79 which follow the,rotary brush. As will be seen boththe rotary brushes and flat brushes are arranged in staggered relationso as to thoroughly brush the material upon the sheet and thusthoroughly coat the sheet with the material. The springs act to hold thebrushes yieldingly against the sheet and the speed of the rotary brushescan be adjusted to suit conditions. The sheet can be easily and quicklyattached to the holding members and by making the holding members ofridge shape there are no shoulders to collect the coating material andall exposed parts of the sheet can be acted on by the coating apparatus.

I also provide means for removing the sheet from the supporting membersand winding it upon a shaft when the sheet is dry. Such means consistsof the stub shaft 91 which is connected by the friction gears 92 to thecounter shaft 24 and which. is

' adapted to receive the lower end of a tubular so that said-member canbe adjusted in any desired position on the shaft 93. Thus when the endof the sheet has been wrapped around the shaft 93 the rotary movei'ieiit of the shaft imparted to it from the cam shaft 24 will act towrap the sheet around i said shaft 93. The lower edge of the sheet tingdiscs 100 are arranged upon a shaft 101 for containing the coatin forconnecting the receptaele with the spray and springs 102 act toyieldingly support the arms upon the shaft. The arms are held againstrotary movement on the shaft by the set screws 103 engaging a slot inthe shaft. These arms are so arranged for the cutting action that thedisc will be. pressed upon the pointed edge of the members 1 and 3 sothat as the apparatus is being driven along the friction will cause thedisc to rotate and thus cut the cloth from the holding member. At thesame time the cloth is being wound upon the hollmv shaft. 93.

Thus I have provided simple means for removing the cloth from theholding means after ithas been treated bythe apparatus. A It is thoughtfrom the foregoing description that the advantages and novel features ofmy invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claims.

What I claim is:-

1. An apparatus for applying a coating to a sheet comprising. acarriage, spray means thereon for spraying the coating material u on thesheet, an air compressor for furnishing air to the spray means, rotarybrushes on the carriage for operating upon material sprayed on thesheet, smoothing brushes on the cari'iageand means on the carriage foractuating the compressor and the rotary brushes. i

2. An apparatus for spraying coating material upon a sheet comprising acarriage, spray means thereon for spraying the coating' material uponthe sheet, 'an air compressor for supplying air to the snravmeans,

a plurality of rotary brushes for working upon the material sprayed onthe sheet, a plurality of stationary brushes on the apparatus forsmoothing the material sprayed on the sheet and power driven means onthe carriage for actuating the compressor and the rotary brushes.

3. An vapparatus of the class described comprising a carriage, sprayingmeans thereon, a plurality of rotary brushes carried by the carriage, aplurality of smoothing brushes carried by the carriage, a receptaclematerial, pipes means, a compressor, a tank for receiving the thereby, acompressed air tank connected.

with the spray nozzles,a receptacle connected with the spray nozzles andwith the tank, a compressor connected with the tank, a motor on thecarriage connected with the compressor," means for driving the carriagefrom the motor, a plurality of rotary brushes carried by the apparatus,means for rotating the same from the motor, means for regulating thespeed of the brushes and smoothing brushes adjustably carried by thecarriage. I I

5. An apparatus of the class described comprising a carriage, a motorfor driving the same, spray means carried by the carriage, brush meanscarried by the carriage,

a receptacle on the carriage connected with the spray means, a compressd air tank on the carriage connected with the receptacle and with thespray means, a compressor for supplying compressed air to the tank,means for driving the same from the motor, rotary brushes carried by thecarriage, means for actuating the same from the mo tor and smoothingbrushes carried by the carriage.

6. An apparatus for coating fabric comprising yieldable supporting meansfor holding a sheet of fabric in vertical position, a carriage, means onthe carriage for slidingly engaging portions of the supporting means toadjust the sheet to a certain distance from the carriage and means onthe carriage for applying coating material to the sheet.

- 7. An apparatus of the class described comprising a carriage, a motorfor driving the same, an upright frame located at one side of thecarriage, spray nozzles adjustably connected with a part of the uprightframe, stand pipes supported by the upright frame, hose for connectingthe stand-pipes with the spray nozzles, a receptacle, pipes connectingthe same with one of the stand pipes, a compressed air tank, pipesconnecting the same with'the other stand pipe, a compressor connectedwith the tank, means for operating the same from the motor, a number ofrotary brushes, means for adjustably supporting the same on the uprightframe, means for rotating the brushes from the motor, such meansincluding mechanism 'ing brushes for controlling the speed of thebrushes and for reversing their movement, and smoothadjustably carriedby the upright frames.

8. An apparatus of the class described comprising a carriage, a motorfor driving the same, an upright frame located at one side of thecarriage, spray nozzles adj ustably connected with a part of the uprightframe, stand pipes supported by the upright frame, hose for connectedthe stand pipes with the spray nozzles, a receptacle, pipes connectingthe same with one of the stand pipes, a compressed air tank, pipesconnecting the same with the other stand pipe, a compressor connectedwith the tank, means for opcrating the same from the motor, a number ofrotary brushes,- means for adjustably supporting the same on the uprightframe,

means for rotating the brushes from the motor, such means includingmechanism for controlling'the speed of the brushes and for reversingtheir movement, smoothing brushes adjustably carried by the uprightframes and means for yieldingly supporting the brushes.

9. An apparatus of the class described comprising sheet supporting meanscomprising upper and lower members having their inner edges ofwedge-shape, one-half of the wedge part of each member being hingedlyconnected with the body of the member so that the sheet can be clampedbetween the movable part and the stationary part, a guideway on eachmember, a carriage, an upright frame. at one side thereof, projectingmembers on said frame, engaging the guideways, cables for supporting theupper member and means -upon' the carriage for applying a coating to thesheet held by the members.

10. An apparatus of the class described comprising sheet supportingmeans comprising upper and lower members having their inner edges ofwedge shape, one-half o the wedge part of each member being hingedlyconnected with the body of the member, so that the sheet can be clampedbetween the movable part and the stationary part, a guideway on eachmember, a carriage, an up right frame at one side thereof, projectingmembers on said frame engaging the guideways, cables for supporting theupper member, means upon the carriage for applying a coating to thesheet held by the members and brushes on the carriage for smoothing thecoating material on the sheet.

In testimony whereof I aflix' my signature.

THOMAS J. FrALBRAITH.

